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| 4/17/2021 | Maquoketa Speedway - Maquoketa, IA Season Opener w/ Midwest Jalopies Pro Legends, Vintage Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 1st | - | - | 12th |
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| 4/24/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing $250 to win Sport Compacts Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 2nd | - | - | 1st |
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| 5/1/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 9th | - | - | 3rd |
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| 5/15/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing $750 to win IMCA Stock Cars Pro Legends, Vintage Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 1st | - | - | 10th |
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| 5/22/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing w/ AIRS Pro Legends, Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 6th | - | - | 6th |
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| 5/29/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing w/ School Bus Races Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 1st | - | - | 19th |
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| 6/5/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing $1000 to win INEX Legends Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 3rd | - | - | 3rd |
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| 6/12/2021 | Maquoketa Speedway - Maquoketa, IA Del Gade Memorial Race w/ AIRS Pro Legends, Vintage Full Body Stock Cars, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 2nd | - | - | 4th |
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| 7/3/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing w/ Bus Races Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 2nd | - | - | 1st |
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| 7/17/2021 | Maquoketa Speedway - Maquoketa, IA Weekly Racing $500 to win IMCA Hobby Stocks Pro Legends, Vintage Modifieds, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Hobby Stock) | - | - | - | - | | Brett Marshall (IMCA Sport Compact) | 1st | - | - | 14th |
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| 8/7/2021 | Maquoketa Speedway - Maquoketa, IA Iowa Donor Network Hall of Fame Night $1000 to win IMCA Modifieds $750 to win IMCA SportMods Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 2nd | - | - | 3rd |
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| 8/14/2021 | Maquoketa Speedway - Maquoketa, IA Season Championship w/ Bus ROC Pro Legends, IMCA Modified, IMCA Northern SportMod, IMCA Stock Car, IMCA Hobby Stock, IMCA Sport Compact | Results | | Brett Marshall (IMCA Sport Compact) | 2nd | - | - | 12th |
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